CN102538444A - Mn-Zn ferrite sintering furnace - Google Patents
Mn-Zn ferrite sintering furnace Download PDFInfo
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- CN102538444A CN102538444A CN2012100270054A CN201210027005A CN102538444A CN 102538444 A CN102538444 A CN 102538444A CN 2012100270054 A CN2012100270054 A CN 2012100270054A CN 201210027005 A CN201210027005 A CN 201210027005A CN 102538444 A CN102538444 A CN 102538444A
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Abstract
The invention relates to a Mn-Zn ferrite sintering furnace, which comprises a furnace body, a heat energy recovery, a cooler, a condenser, an electrical control cabinet, a pump and a fan and the like, wherein the upper portion of the furnace body is provided with a gas outlet, the side surface of the furnace body is orderly provided with a gas inlet, a nitrogen and oxygen mixed gas inlet, a vacuum pump interface and an interface which is connected with the electrical control cabinet, the fan is orderly connected with the heat energy recovery and a fourth valve through a first valve, the fourth valve is divided into two circuits to connect with a first gas inlet and a second gas inlet of the furnace body, the other end of the heat energy recovery is connected with the gas outlet through the cooler, and a pipeline arranged between the heat energy recovery and the cooler is connected with a condenser. The Mn-Zn ferrite sintering furnace has the advantages of high purity nitrogen conservation, energy conservation and low manufacturing cost, and is an ideal device for meeting the demands of development of integrated small batch production of Mn-Zn ferrite materials.
Description
Technical field
The invention belongs to the Industrial Stoves field, be specifically related to a kind of manganese-zinc ferrite sintering furnace.
Background technology
At present, the existence of the vacuum drying oven of sintering MnZn ferrite material yields poorly, energy consumption is high, the cycle is long and the problem of properties of product uniformity difference.Sintering process relies on the not enough of sustainable supply nitrogen and the problem of the even homogeneity of product deviation of temperature distributing disproportionation that causes because of air-flow is too fast and the bell jar stove also exists.
Summary of the invention
The present invention provides a kind of manganese-zinc ferrite sintering furnace for solving the problem in the present technology, and it can be practiced thrift high pure nitrogen, cut down the consumption of energy and manufacturing cost.
The present invention adopts following technical scheme to be achieved:
A kind of manganese-zinc ferrite sintering furnace, it comprises body of heater, thermal energy recoverer, cooler, condenser, electrical control cubicles, pump, blower fan.
The top of said body of heater is provided with gas vent; The interface that a side of body of heater is provided with first air inlet, nitrogen oxygen atmosphere inlet, vavuum pump interface successively and is connected with electrical control cubicles; Said electrical control cubicles links to each other with body of heater through the interface that connects, and said vavuum pump interface links to each other with vavuum pump; Be provided with second air inlet with the another side of the corresponding body of heater of a side of said first air inlet, said second air inlet and first air inlet communicate through pipeline.
Said blower fan links to each other with the 4th valve with thermal energy recoverer through first valve successively, and said the 4th valve divides two-way to link to each other with second air inlet with first air inlet of body of heater again.
The other end of said thermal energy recoverer is connected with gas vent through cooler.
The 3rd end of said thermal energy recoverer divides two-way to link to each other with second valve, the 3rd valve again, and the other end of said the 3rd valve links to each other with second air inlet with first air inlet of body of heater through first pump; The other end of said second valve is an exhaust outlet.
Pipeline is connected with condenser between said thermal energy recoverer and the cooler, and the other end of said condenser is connected with the 5th valve through second pump, and the other end of said the 5th valve links to each other with second air inlet with first air inlet of body of heater.
The beneficial effect that the present invention compared with prior art has is:
1, manganese-zinc ferrite sintering furnace of the present invention has thermal efficiency recovery circulatory function, and 30% to 50% heat energy comes preheating to advance the fresh air of stove in the recyclable waste gas.
2, the present invention can carry out thermal cycle and insulation, between soak, can realize the even distribution of temperature, gas in the stove.
3, the present invention has cooling system cooling, between cooldown period, can realize: furnace temperature is more than 500 ℃ the time, and the rate of temperature fall per minute falls and is not less than 5 ℃; When furnace temperature was lower than 500 ℃, the rate of temperature fall per minute was not less than 3 ℃, and in this scope rate adjusted.Be existing vacuum drying oven, bell jar stove can not than.
4, the pipeline of high-temperature gas through reasonably designing that furnace roof flows out among the present invention can effectively be reduced to 600 ℃ from 1400 ℃.
5, the energy recovery among the present invention adopts gas-gas exchanged form to make new cold air advance furnace temperature and is not less than 350 ℃.
6, the thermal cycle among the present invention is to carry out under the complete closed, has realized the quasistatic sintering.
7, the present invention practices thrift high pure nitrogen nearly 70%, energy-conservation nearly 20% than the bell jar stove.
8, the present invention reduces manufacturing cost 40% with the prior art ratio, and uniformity is fine.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The explanation of each parts in the accompanying drawing:
1, first pump; 2, blower fan; 3, second pump; 4, first valve; 5, second valve; 6, the 3rd valve; 7, the 4th valve; 8, the 5th valve; 9, condenser; 10, thermal energy recoverer; 11, cooler; 12, first air inlet; 13, nitrogen oxygen atmosphere inlet; 14, vavuum pump interface; 15, gas vent; 16, body of heater; 17, second air inlet; 18, electrical control cubicles.
The specific embodiment
With reference to the accompanying drawings the specific embodiment of the invention is elaborated.
Like Fig. 1 is structural representation of the present invention.
Referring to Fig. 1, a kind of manganese-zinc ferrite sintering furnace of the present invention, it comprises body of heater 16, thermal energy recoverer 10, cooler 11, condenser 9, electrical control cubicles 18, pump, blower fan 2.
The top of said body of heater 16 is provided with gas vent 15; The interface that a side of body of heater is provided with first air inlet 12, nitrogen oxygen atmosphere inlet 13, vavuum pump interface 14 successively and is connected with electrical control cubicles 18; Said electrical control cubicles 18 links to each other with body of heater 16 through the interface that connects; Said vavuum pump interface 14 links to each other with vavuum pump, is provided with second air inlet 17 with the another side of the corresponding body of heater of a side of said first air inlet 12.Said second air inlet 17 and first air inlet 12 communicate through pipeline.
Said blower fan 2 links to each other with the 4th valve 7 with thermal energy recoverer 10 through first valve 4 successively, and said the 4th valve 7 divides two-way to link to each other with second air inlet 17 with first air inlet 12 of body of heater again.
The other end of said thermal energy recoverer 10 is connected with gas vent 15 through cooler 11.
The 3rd end of said thermal energy recoverer 10 divides two-way to link to each other with second valve 5, the 3rd valve 6 again, and the other end of said the 3rd valve 6 links to each other with second air inlet 17 with first air inlet 12 of body of heater through first pump 1; The other end of said second valve 5 is an exhaust outlet.
Pipeline is connected with condenser 9 between said thermal energy recoverer 10 and the cooler 11, and the other end of said condenser 9 is connected with the 5th valve 8 through second pump 3, and the other end of said the 5th valve 8 links to each other with second air inlet 17 with first air inlet 12 of body of heater.
Said electrical control cubicles 18 is the electric power supply control system of sintering furnace.
Said vavuum pump interface 14 links to each other with vavuum pump, is to get the gas position when extracting furnace gas.
The operation principle of the present invention and the course of work: the manganese-zinc ferrite agglomerated material is put into body of heater 16, close fire door, the switch that starts electrical control cubicles 18 is accomplished sintering work through processes.
1, the temperature rise period: through four valve 7 after divide two routes first air inlet 12, second air inlet 17 to get into bodies of heater through first valve 4 through thermal energy recoverer 10 by blower fan 2 fresh air.Furnace exhaust, after thermal energy recoverer 10 reclaims heat energy, is discharged by second valve 5 through cooler 11 coolings by gas vent 15 again.
2, holding stage: promote gas by first pump 1 and get in the bodies of heater 16 by first air inlet 12, second air inlet 17; Discharge by the gas vent 15 at top again; And, carry out gas circulation through cooler 11, through thermal energy recoverer 10, again through the 3rd valve 6 entering first pump 1.
When 3, need replenishing nitrogen oxygen mixed gas, nitrogen oxygen mixed gas gets into bodies of heater by nitrogen oxygen atmosphere inlet 13, comes out through cooler 11, through thermal energy recoverer 10 from the gas vent 15 at top, is discharged by second valve 5.
4, temperature-fall period: promote gas by second pump 3 and get in the body of heater 16 from first air inlet, 12, the second air inlets 17, discharge by the gas vent 15 at top, and get back to second pump 3 through cooler 11 and cooler 9 through the 5th valve 8.
The specific embodiment of the present invention:
With manganese-zinc ferrite power powder compression moulding EE30 blank, sign indicating number is on the sandwich setter plate of 340 * 340 * 12mm, and every plate is piled up 325, and four jiaos of each load bearing boards are cut Cheng Yiduo, every buttress 20 plates with the support of corundum post.One stove is adorned four buttress.Amount to 26000.Every heavy by 12, and 5g amounts to 325 kilograms.Four buttress install the rear enclosed fire door.
Start the electrical control cubicles switch, open blower fan 2, first valve 4, the 4th valve 7, second valve 5.Begin to heat up.Different according to temperature; The blower fan air output is different, and fresh air is got into by blower fan 2, through first valve 4, thermal energy recoverer 10, the 4th valve 7; Divide two routes, first air inlet 12 and second air inlet 17 to get into body of heater 16; Waste gas is discharged by the gas vent 15 at body of heater 16 tops, again through cooler 11, thermal energy recoverer 10, is discharged by second valve 5.
When temperature to 1420 is spent, close blower fan 2.Open vavuum pump and extract hot gas in the body of heater 16 by nitrogen oxygen atmosphere inlet 13, replenish nitrogen oxygen atmosphere by vavuum pump interface 14 and go into body of heater 16, oxygen content is adjusted to about 50,000 PPm, furnace pressure is adjusted to 500mmHg, carries out heat preservation sintering.Between soak, start first pump 1 and the 3rd valve 6, implement the sealing thermal cycle.Gas is driven from pump by pump 1 in the body of heater 16, gets into body of heater 16 by first air inlet 12 and second air inlet 17, is discharged by body of heater 16 top exits 15, and through cooler 11, heat regenerator 10, the three valves 6 get into first pump 1 again, accomplish once circulation.Regularly opening nitrogen oxygen atmosphere takes a breath; Each certain time; The 3rd valve 6 is closed during replenishing nitrogen oxygen, and first pump 1 quits work, and second valve 5 is opened; Nitrogen oxygen mixed gas gets into body of heater 16 by nitrogen oxygen atmosphere inlet 13, is got rid of through cooler 11, thermal energy recoverer 10 by body of heater top gas outlet 15 and is discharged by second valve 5.
Insulation finishes to spend to 1100 degree from 1420 for cooling the adjustment period, closes first pump 1 and the 3rd valve 6, seals thermal cycle and stops, and opens second pump 3 and the 5th valve 8.First pump 1 is implemented speed governing, with the control cooling rate.During this oxygen content is carried out three adjustment, extract body of heater 16 internal gas and replenish nitrogen oxygen atmosphere through vavuum pump interface 14 through nitrogen oxygen atmosphere inlet 13.Add second pump, 3 rotating speeds to 1100 degree, cooling rate is controlled at 4.5 positive and negative 0.1 degree/per minutes.Temperature drops to 500 when spending, and opens second pump 3 at full speed.Drop to 160 degree until temperature.Add up to about the omnidistance 22 hours time.
The whole process of sintering is with 5 cubes of nitrogen, and power consumption 1200 is spent.More existing vacuum drying oven, the heating-up time shortens 3 hours, and cooling is shortened 5 to 6 hours and is added up to saving 11 hours, and output is 5 times of traditional burner, and power consumption is little, commercially available four buttress stoves, and output is identical, about power consumption 1500 degree, about 100 cubes of consumption nitrogen.Sintering furnace of the present invention is than commercially available stove economize on electricity 20%, and nitrogen practices thrift 85%, reduces cost 40%.Through test size scope 30.0-30.25mm.And uniformity is fine.
Protection scope of the present invention is not limited to the described content of embodiment in the literary composition, and any equipment with structural similarity of the present invention is replaced all within protection scope of the present invention with equivalence.
Claims (1)
1. a manganese-zinc ferrite sintering furnace is characterized in that, it comprises body of heater (16), thermal energy recoverer (10), cooler (11), condenser (9), electrical control cubicles (18), pump, blower fan (2);
The top of said body of heater (16) is provided with gas vent (15); The interface that a side of body of heater (16) is provided with first air inlet (12), nitrogen oxygen atmosphere inlet (13), vavuum pump interface (14) successively and is connected with electrical control cubicles (18), said electrical control cubicles (18) links to each other with body of heater (16) through the interface that connects; Said vavuum pump interface (14) links to each other with vavuum pump; Be provided with second air inlet (17) with the another side of the corresponding body of heater of a side of said first air inlet (12), said second air inlet (17) and first air inlet (12) communicate through pipeline;
Said blower fan (2) links to each other with the 4th valve (7) with thermal energy recoverer (10) through first valve (4) successively, and said the 4th valve (7) divides two-way to link to each other with second air inlet (17) with first air inlet (12) of body of heater again;
The other end of said thermal energy recoverer (10) is connected with gas vent (15) through cooler (11);
The 3rd end of said thermal energy recoverer (10) divides two-way to link to each other with second valve (5), the 3rd valve (6) again, and the other end of said the 3rd valve (6) links to each other with second air inlet (17) with first air inlet (12) of body of heater through first pump (1); The other end of said second valve (5) is an exhaust outlet;
Pipeline is connected with condenser (9) between said thermal energy recoverer (10) and the cooler (11); The other end of said condenser (9) is connected with the 5th valve (8) through second pump (3), and the other end of said the 5th valve (8) links to each other with second air inlet (17) with first air inlet (12) of body of heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210027005.4A CN102538444B (en) | 2012-02-08 | 2012-02-08 | Mn-Zn ferrite sintering furnace and sintering process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210027005.4A CN102538444B (en) | 2012-02-08 | 2012-02-08 | Mn-Zn ferrite sintering furnace and sintering process thereof |
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| CN102538444A true CN102538444A (en) | 2012-07-04 |
| CN102538444B CN102538444B (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210027005.4A Expired - Fee Related CN102538444B (en) | 2012-02-08 | 2012-02-08 | Mn-Zn ferrite sintering furnace and sintering process thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884180A (en) * | 2014-03-03 | 2014-06-25 | 山东嘉诺电子有限公司 | Heat cycle negative-pressure bell kiln for sintering soft magnetic ferrite cores |
| CN105969972A (en) * | 2016-07-15 | 2016-09-28 | 武汉电炉有限公司 | Method and device for feeding and discharging shielding gas of high-temperature bell-type furnace |
| CN112944902A (en) * | 2021-02-01 | 2021-06-11 | 高帅 | Sintering furnace convenient for recycling residual heat and utilization method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201028540Y (en) * | 2007-04-03 | 2008-02-27 | 深圳市格林美高新技术股份有限公司 | Selective volatilization roasting furnace for waste zinc-manganese battery |
| CN201155780Y (en) * | 2008-01-24 | 2008-11-26 | 张伟 | Boiler heating system capable of fully utilizing flue gas residual heat |
| CN201525753U (en) * | 2009-10-21 | 2010-07-14 | 张本忠 | Activated carbon stand sleeve spiral fluidized furnace |
| CN202082947U (en) * | 2011-04-11 | 2011-12-21 | 王仁华 | Environment-friendly energy-saving heating furnace device |
| CN202442583U (en) * | 2012-02-14 | 2012-09-19 | 天津市科翔迅通磁性材料厂 | Manganese zinc ferrite sintering furnace |
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2012
- 2012-02-08 CN CN201210027005.4A patent/CN102538444B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201028540Y (en) * | 2007-04-03 | 2008-02-27 | 深圳市格林美高新技术股份有限公司 | Selective volatilization roasting furnace for waste zinc-manganese battery |
| CN201155780Y (en) * | 2008-01-24 | 2008-11-26 | 张伟 | Boiler heating system capable of fully utilizing flue gas residual heat |
| CN201525753U (en) * | 2009-10-21 | 2010-07-14 | 张本忠 | Activated carbon stand sleeve spiral fluidized furnace |
| CN202082947U (en) * | 2011-04-11 | 2011-12-21 | 王仁华 | Environment-friendly energy-saving heating furnace device |
| CN202442583U (en) * | 2012-02-14 | 2012-09-19 | 天津市科翔迅通磁性材料厂 | Manganese zinc ferrite sintering furnace |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884180A (en) * | 2014-03-03 | 2014-06-25 | 山东嘉诺电子有限公司 | Heat cycle negative-pressure bell kiln for sintering soft magnetic ferrite cores |
| CN105969972A (en) * | 2016-07-15 | 2016-09-28 | 武汉电炉有限公司 | Method and device for feeding and discharging shielding gas of high-temperature bell-type furnace |
| CN112944902A (en) * | 2021-02-01 | 2021-06-11 | 高帅 | Sintering furnace convenient for recycling residual heat and utilization method thereof |
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| CN102538444B (en) | 2014-11-05 |
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Granted publication date: 20141105 Termination date: 20160208 |